<link rel="stylesheet" href="./lbt.css">
<script src="./lbt.js"></script>
<div class="box box1">
    <img src="./imges/img1.jpg" alt="">
    <ul>
        <li class=".active"></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
    </ul>
</div>

<div class="box box2">
    <img src="./imges/img1.jpg" alt="">
    <ul>
        <li class=".active"></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
    </ul>
</div>
<script>
let lbt1=new Lbt('.box1',{})
let lbt2=new Lbt('.box2',{})
</script>